The signal 7 has now changed to a signal 11. I checked where you said to look,
and the only thing that looked like an error was a line that read:
Unable to identify CD-ROM format
Also, there were some devices sharing IRQs, but that shouldn't be a problem,
right?

I tried running linux ide=nodma, and again anaconda exited abnormally, but
without a Signal 11. Under <ctrl><alt>F4, nothing looked different than
before. Under <ctrl><alt>F3, the last line was "looking for USB mouse" but
that could be the same as before. Also, under F4, the last few lines were:
raid0 personality registered as nr2
raid1 personality registered as nr3
raid5: measuring checksumming speed
...(here it output some test results)
raid5:using function: p5_mmx (3284.800 MB/sec)
raid5 personality registered as nr4
I don't know if that last part means anything, but it was the last few lines
under F4.

It's hard to say what the problem is. It's not getting far enough into the
installer for me to do any meaningful debugging. Can you look on VC1 and see if
you see a line that says "Running anaconda"? If you don't see that, then
anaconda hasn't even started, which means there either a kernel problem or
there's something wrong with the hardware.

I see this same error on a dual-processor 1GHz Pentium III... Running on an
ABIT VP6, latest BIOS. It happens on both fail-safe and optimized settings.
I've tried everything I can think of to solve this, including disabling the USB
bus, turning off my Adaptec card, etc.
I see exactly the same errors as the previous reporting person.
I have an Adaptec SCSI controller with a single CD-RW attached. I can give
more thorough specs if you want.